diff options
Diffstat (limited to 'include')
-rw-r--r-- | include/linux/kvm_host.h | 16 | ||||
-rw-r--r-- | include/linux/kvm_types.h | 10 |
2 files changed, 16 insertions, 10 deletions
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h index 678fd7914521..be9bbc0c6200 100644 --- a/include/linux/kvm_host.h +++ b/include/linux/kvm_host.h @@ -1231,11 +1231,12 @@ void kvm_vcpu_mark_page_dirty(struct kvm_vcpu *vcpu, gfn_t gfn); * @gpc: struct gfn_to_pfn_cache object. * @vcpu: vCPU to be used for marking pages dirty and to be woken on * invalidation. - * @guest_uses_pa: indicates that the resulting host physical PFN is used while - * @vcpu is IN_GUEST_MODE; invalidations of the cache from MMU - * notifiers (but not for KVM memslot changes!) will also force - * @vcpu to exit the guest to refresh the cache. - * @kernel_map: requests a kernel virtual mapping (kmap / memremap). + * @usage: indicates if the resulting host physical PFN is used while + * the @vcpu is IN_GUEST_MODE (in which case invalidation of + * the cache from MMU notifiers---but not for KVM memslot + * changes!---will also force @vcpu to exit the guest and + * refresh the cache); and/or if the PFN used directly + * by KVM (and thus needs a kernel virtual mapping). * @gpa: guest physical address to map. * @len: sanity check; the range being access must fit a single page. * @dirty: mark the cache dirty immediately. @@ -1250,9 +1251,8 @@ void kvm_vcpu_mark_page_dirty(struct kvm_vcpu *vcpu, gfn_t gfn); * accessing the target page. */ int kvm_gfn_to_pfn_cache_init(struct kvm *kvm, struct gfn_to_pfn_cache *gpc, - struct kvm_vcpu *vcpu, bool guest_uses_pa, - bool kernel_map, gpa_t gpa, unsigned long len, - bool dirty); + struct kvm_vcpu *vcpu, enum pfn_cache_usage usage, + gpa_t gpa, unsigned long len, bool dirty); /** * kvm_gfn_to_pfn_cache_check - check validity of a gfn_to_pfn_cache. diff --git a/include/linux/kvm_types.h b/include/linux/kvm_types.h index dceac12c1ce5..784f37cbf33e 100644 --- a/include/linux/kvm_types.h +++ b/include/linux/kvm_types.h @@ -18,6 +18,7 @@ struct kvm_memslots; enum kvm_mr_change; +#include <linux/bits.h> #include <linux/types.h> #include <linux/spinlock_types.h> @@ -46,6 +47,12 @@ typedef u64 hfn_t; typedef hfn_t kvm_pfn_t; +enum pfn_cache_usage { + KVM_GUEST_USES_PFN = BIT(0), + KVM_HOST_USES_PFN = BIT(1), + KVM_GUEST_AND_HOST_USE_PFN = KVM_GUEST_USES_PFN | KVM_HOST_USES_PFN, +}; + struct gfn_to_hva_cache { u64 generation; gpa_t gpa; @@ -64,11 +71,10 @@ struct gfn_to_pfn_cache { rwlock_t lock; void *khva; kvm_pfn_t pfn; + enum pfn_cache_usage usage; bool active; bool valid; bool dirty; - bool kernel_map; - bool guest_uses_pa; }; #ifdef KVM_ARCH_NR_OBJS_PER_MEMORY_CACHE |